I will try and educate myself on how hunters 150 years ago killed deer with round balls that measured .45 caliber and smaller. i do not understand the need to hunt whitetail deer with a bullet that is capable of shooting through an elk lengthwise.
Last year i did not recover one bullet from the 20+ hogs that i shot with my muzzleloaders. The vast majority of those hogs died within 25 yards of where they were shot: i saw no pressing need to second guess the bullet. The 250 grain SST/Shockwave and the 240 grain .430 bullets work for me and i see no need to change.